28 U.S.C. § 1331 Cited 99,576 times 136 Legal Analyses
Finding that in order to invoke federal question jurisdiction, a plaintiff's claims must arise "under the Constitution, laws, or treaties of the United States."
28 U.S.C. § 1367 Cited 63,749 times 79 Legal Analyses
Holding that in civil actions proceeding in federal court based solely on diversity jurisdiction under 28 U.S.C. § 1332, the district court "shall not have supplemental jurisdiction" over "claims by plaintiffs against persons made parties under Rule . . . 24" or "over claims by persons . . seeking to intervene as plaintiffs under Rule 24," if "exercising supplemental jurisdiction over such claims would be inconsistent with the jurisdictional requirements of section 1332"
29 U.S.C. § 621 Cited 17,631 times 21 Legal Analyses
Finding that "older workers find themselves disadvantaged in their efforts to retain employment, and especially to regain employment when displaced from jobs"